User's Manual

www.malags.com
25
NOTE: Take care when bending the fibres under the metal
cover that attaches to the connectors with the two screws. The
fibres should form a soft bend in order to obtain good light
conditions. A too hard bend may result in loss of trig pulses to
either Tx or Rx or the loss of data from the Rx to the control
unit.
?? If the measuring wheel is used then the connecting
cable should be connected to the cable from the plastic
hose.
?? At the control unit the optical fibres should be attached
firmly as well as the electric cable for the measuring
wheel. The latter attaches to the 9-pin connector
marked ENC.
?? The metal plate at the end of the plastic hose may be
attached to the control unit using one of the screws for
the backpack. This gives a firm attachment and avoids
fibre problems.
When the antenna is connected properly and the charged
battery pack is connected properly we recommend you turn on
the antenna and let it ”warm up” for about 3-5 minutes before
performing any measurements. The ”warm up” period reduces
the vertical signal deflection of data.
A red LED light on the antenna indicates that the power is
switched on. At this stage the transmitting element starts
transmitting pulses at the normal rate of 100 kHz. Now the
control unit and external PC can be connected and turned on.